Grass-valley 8941 Uživatelský manuál

8941270 MBPS MONITORING DAInstruction ManualSoftware Version 1.4.0071810902NOVEMBER 2009

10 8941 Instruction ManualInstallation Cabling Cabling to and from the module is done at the back of the Gecko 8900 frame Refer to Figure 3. At the

8941 Instruction Manual 11Power Up Power Up With factory default configuration and a valid input signal connected, one of the green signal standard

12 8941 Instruction ManualModule Configuration Module Configuration When installing the 8941 module, there is an eight-position DIP switch (SW1) that

8941 Instruction Manual 13Module Alignment SMPTE Alarm Note The SMPTE alarm can function only if the Frame Controller or 8900NET module is installe

14 8941 Instruction ManualModule Alignment EQ Warning Adjustment A variable resistor, EQ WARN (R78,) allows the user to adjust the corre-sponding c

8941 Instruction Manual 15Module Alignment Output Gain Adjustment Follow the steps listed to adjust the output gain: 1. Connect a window signal to

16 8941 Instruction ManualSpecifications SpecificationsTable 4. 8941 Specifications Parameter ValueVideo InputSignal type Serial digital video conformin

8941 Instruction Manual 17Specifications Line tilt < 0.5%Field tilt < 0.5%Subcarrier jitter < 0.5° DC offset < 50 mVElectrical length (N

18 8941 Instruction ManualService Service The 8941 270 MBPS Monitoring DA modules make extensive use of sur-face-mount technology and programmed pa

8941 Instruction Manual 19Functional Description Functional DescriptionRefer to the simplified block diagram in Figure 9 while reading the fol-lowing

2 8941 Product Component Instruction Manual Contacting Grass ValleyInternationalSupport CentersFrance24 x 7+800 8080 2020 or +33 1 48 25 20 20United S

20 8941 Instruction ManualFunctional Description In the Analog LPF (Low Pass Filter) and Output block the encoded analog video passes through the LPF

8941 Instruction Manual 21 IndexNumerics525 LED 11625 LED 118900NET moduleinstallation 8SMPTE alarm 13Aanalog outputscabling 10specifications 16

22 8941 Instruction ManualIndex cabling 10specification 16overlay 9, 10Pperformance 16power supply 8Sservicing module 18SMPTE Alarm 13software

8941 Instruction Manual 3 Contents Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4 8941 Instruction ManualContents

8941 Instruction Manual 5 Preface About This Manual This manual describes the features of a specific module of the Gecko 8900 Signal Processing Syst

6 8941 Instruction ManualPreface

8941 Instruction Manual 7 8941 270 MBPS Monitoring DA Introduction The 8941 270 MBPS Monitoring DA module encodes one channel of a serial digital c

8 8941 Instruction ManualInstallation Installation Installation of the 8941 module is a process of:• Placing the module in the selected frame slot,

8941 Instruction Manual 9Installation Figure 1. 8900 Series Frame 8900 modules are interchangeable within the module cells. There are 10 BNC conne